15 citations · 24 across the 10 of their papers we have counts for
11 papers
Nonlinear Causality and Strong Hyperbolicity of Einstein-Israel-Stewart Theories of Transient Relativistic Fluid Dynamics
Ian Cordeiro, Enrico Speranza, Fábio S. Bemfica +2
We present the first complete analysis of nonlinear causality and local well-posedness for a very general class of bulk and shear viscous theories of relativistic transient fluid d…
Nonlinear causality and strong hyperbolicity of baryon-rich Israel-Stewart hydrodynamics
Ian Cordeiro, Fábio S. Bemfica, Enrico Speranza +1
We present the first set of fully-nonlinear, necessary and sufficient conditions guaranteeing causal evolution of the initial data for the Israel-Stewart hydrodynamic equations wit…
Nonlinear causality of Israel-Stewart theory with diffusion
Ian Cordeiro, Fábio S. Bemfica, Enrico Speranza +1
We present the first fully nonlinear causality constraints in dimensions for Israel-Stewart theory in the presence of energy and number diffusion in the Eckart and Land…
Perfect spinfluid: A divergence-type approach
Nick Abboud, Lorenzo Gavassino, Rajeev Singh +1
We present a new formulation of non-dissipative relativistic spin hydrodynamics that incorporates spin degrees of freedom into the divergence-type theory framework. Due to the dive…
Symmetry energy dependence of the bulk viscosity of nuclear matter
Yumu Yang, Mauricio Hippert, Enrico Speranza +1
We clarify how the weak-interaction-driven bulk viscosity and the bulk relaxation time of neutrino-transparent matter depend on the nuclear symmetry energy. We show…
Second-Order Transport Coefficients in Neutron Star Mergers
Yumu Yang, Mauricio Hippert, Enrico Speranza +1
In neutron stars, flavor-changing weak interactions determine the equilibrium fraction of protons over neutrons. In binary neutron-star mergers, violent changes in density modify t…
First-order relativistic hydrodynamics with an information current
Lorenzo Gavassino, Nick Abboud, Enrico Speranza +1
We show that it is possible to define a timelike future-directed information current within relativistic first-order hydrodynamics. This constitutes the first step toward a covaria…
A new causal and stable theory of viscous chiral hydrodynamics
Nick Abboud, Enrico Speranza, Jorge Noronha
We construct the general theory of first-order relativistic hydrodynamics for a fluid exhibiting a chiral anomaly, including all possible viscous terms allowed by symmetry. Using s…
Bulk viscosity transport coefficients in neutron star mergers
Yumu Yang, Mauricio Hippert, Enrico Speranza +1
We compute first and second-order bulk-viscous transport properties due to weak-interaction processes in matter in the neutrino transparent regime. The transport coefficients…
Causality Bounds on Dissipative General-Relativistic Magnetohydrodynamics
Ian Cordeiro, Enrico Speranza, Kevin Ingles +2
We derive necessary and sufficient conditions under which a large class of relativistic generalizations of Braginskii's magnetohydrodynamics with shear, bulk, and heat diffusion ef…
Far-from-equilibrium bulk-viscous transport coefficients in neutron star mergers
Yumu Yang, Mauricio Hippert, Enrico Speranza +1
We investigate the weak-interaction-driven bulk-viscous transport properties of matter in the neutrino transparent regime. Previous works assumed that the induced bulk viscos…